mdb testsuite failures on ppc64el

This should be fixed in db5.3 (5.3.28-3ubuntu2)

Mistook this for the BDB test failure and closed it accidentally. The MDB failure is definitely still there. :/

From the tail of the slapd log for the failed test:

lt-slapd: ../../../../../servers/slapd/back-mdb/../../../libraries/libmdb/mdb.c:4650: mdb_node_add: Assertion `mp->mp_pb.pb.pb_upper >= mp->mp_pb.pb.pb_lower' failed.

This bug was fixed in the package openldap - 2.4.40+dfsg-1ubuntu1

---------------
openldap (2.4.40+dfsg-1ubuntu1) wily; urgency=low

  * Merge from Debian testing (LP: #1395098, LP: #1316124). Remaining changes:
    - Enable AppArmor support:
      - d/apparmor-profile: add AppArmor profile
      - d/rules: use dh_apparmor
      - d/control: Build-Depends on dh-apparmor
      - d/slapd.README.Debian: add note about AppArmor
    - Enable GSSAPI support:
      - d/patches/gssapi.diff, thanks to Jerry Carter (Likewise):
        - Add --with-gssapi support
        - Make guess_service_principal() more robust when determining
          principal
      - d/configure.options: Configure with --with-gssapi
      - d/control: Added heimdal-dev as a build depend
    - Enable ufw support:
      - d/control: suggest ufw.
      - d/rules: install ufw profile.
      - d/slapd.ufw.profile: add ufw profile.
    - Enable nss overlay:
      - d/{patches/nssov-build,rules}: Apply, build and package the
        nss overlay.
    - d/{rules,slapd.py}: Add apport hook.
    - d/slapd.init.ldif: don't set olcRootDN since it's not defined in
      either the default DIT nor via an Authn mapping.
    - d/slapd.scripts-common:
      - add slapcat_opts to local variables.
      - Remove unused variable new_conf.
      - Fix backup directory naming for multiple reconfiguration.
    - d/{slapd.default,slapd.README.Debian}: use the new configuration style.
    - d/rules: Enable -DLDAP_CONNECTIONLESS to build CLDAP (UDP) support
      in the openldap library, as required by Likewise-Open
    - Show distribution in version:
      - d/control: added lsb-release
      - d/patches/fix-ldap-distribution.patch: show distribution in version
  * Drop patches included upstream:
    - d/patches/0001-ITS-7430-GnuTLS-Avoid-use-of-deprecated-function.patch
    - d/patches/bdb-deadlock.patch
    - d/patches/its-7354-fix-delta-sync-mmr.diff
  * Drop hardening-wrapper as Debian now sets PIE and bindnow flags.
  * debian/patches/nssov-build: Adjust for upstream changes.
  * debian/apparmor-profile:
    - Change 'r' to 'rw' for ldapi and nslcd sockets, required for apparmor
      kernel ABI v7 (utopic and later). (LP: #1392018)
    - Reduce permissions on /run/nslcd to just the nslcd socket.
  * Enable the mdb backend again on ppc64el, fixed upstream in ITS#7713.
    (LP: #1293250)

openldap (2.4.40+dfsg-1) unstable; urgency=medium

  * Remove inetorgperson.schema from the upstream source. Replace it with a
    copy stripped of RFC text. (Closes: #780283)
  * Adjust debian/watch for +dfsg versioning.
  * debian/patches/ITS7975-fix-mdb-onelevel-search.patch: Import upstream
    patch to fix scope=onelevel searches wrongly including the search base in
    results under the MDB backend. (ITS#7975) (Closes: #782212)

openldap (2.4.40-4) unstable; urgency=medium

  * debian/patches/ITS8027-deref-reject-empty-attr-list.patch: Import upstream
    patch to fix a crash when a search includes the Deref control with an
    empty attribute list. (ITS#8027) (CVE-2015-1545, Closes: #776988)
  * debian/patches/ITS8046-fix-vrFilter_free-crash.patch: Import upstream
    patch to fix a double free triggered by...